Citation :
 
 Windows 2000/XP TFTP Client short Instructions
       *
         Open two command windows (Start-Run-Enter "cmd" )
     *
         In one window, type "ping -t 192.168.1.1" and press enter. 192.168.1.1 is the router IP.
     *
         Ping will continuously try to contact the wrt. Keep this running
     *
         In the other window, prepare the tftp command "tftp -i 192.168.1.1 PUT OpenWrt-gs-code.bin". Do not press enter yet!
     *
         Now you may plug in the router (unplug it first if it was plugged).
     *
         In the ping window it will start saying "Hardware Error"
     *
         Return to the tftp window. As soon as the ping window starts to answer again, press enter in the tftp window.
     *
         The image should now be flashed without multiple tries.
     *
         If ping starts with "Hardware Error", then starts to answer, and then returns to "Hardware Error" again for a short moment, you waited too long.  
 
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